When controlling an unaffected area, the pressure should be maintained how in relation to the affected area?

Maintaining positive pressure in the unaffected area relative to the affected area is essential for effective containment and control during the drying process. When positive pressure is established, it creates a barrier that prevents the movement of moisture, contaminants, or air from the affected area to the unaffected area. This helps to protect clean areas from potential damage or contamination, ensuring that no excessive humidity or harmful particles escape into spaces that have not been impacted by water intrusion or mold growth.

By using positive pressure, technicians can effectively manage airflow and direct it away from the unaffected areas, which is critical in maintaining a clean and safe environment while performing restoration tasks. This method is particularly important in large commercial spaces where precise control of the drying environment is necessary to achieve optimal results and minimize the risk of secondary damage.